2 citations · 3 across the 10 of their papers we have counts for
10 papers
Adaptive Mesh Coarsening for Efficient Phase-Field Fracture Simulations
Aarosh Dahal, Abhinav Gupta, Aditya Kumar
Phase-field models provide a versatile framework for simulating fracture nucleation and propagation without explicit crack tracking. Their principal computational challenge is the…
Dynamic phase-field model for brittle fracture in grounded glaciers
Aarosh Dahal, Umar Khayaz, Ravindra Duddu +1
Fracture and calving of glaciers are key contributors to ice-mass loss and sea-level rise, yet predictive modeling remains challenging. Fracture in grounded glaciers is driven by g…
Rational Mechanics of Material Strength in Brittle Solids
Arash Yavari, Aditya Kumar
Material strength is a classical concept with renewed importance in fracture mechanics, particularly in crack nucleation in brittle solids. We formulate material strength in finite…
Why planar cracks fragment into echelon cracks
Olivia Ward, Aditya Kumar
Predicting the path and shape of growing cracks is fundamental to understanding of fracture. Under out-of-plane shear loading, an initially planar crack may spontaneously fragment…
The phase-field model of fracture incorporating Mohr-Coulomb, Mogi-Coulomb, and Hoek-Brown strength surfaces
S Chockalingam, Adrian Buganza Tepole, Aditya Kumar
Classical phase-field theories of brittle fracture capture toughness-controlled crack growth but do not account for the material's strength surface, which governs fracture nucleati…
Nonlinear Mechanics of Arterial Growth
Aditya Kumar, Arash Yavari
In this paper, we formulate a geometric theory of the mechanics of arterial growth. An artery is modeled as a finite-length thick shell that is made of an incompressible nonlinear…
On failure mechanisms and load-parallel cracking in confined elastomeric layers
Aarosh Dahal, Aditya Kumar
Thin layers of elastomers bonded to two rigid plates demonstrate unusual failure response. Historically, it has been believed that strongly-bonded layers fail by two distinct mecha…
A comparison of phase field models of brittle fracture incorporating strength: I -- Mixed-mode loading
Umar Khayaz, Aarosh Dahal, Aditya Kumar
The classical variational phase-field model for brittle fracture effectively predicts the growth of large pre-existing cracks. However, the modeling of crack nucleation continues t…
Emergence of tension-compression asymmetry from a complete phase-field approach to brittle fracture
Chang Liu, Aditya Kumar
The classical variational approach to brittle fracture propagation does not distinguish between strain energy accumulation in tension versus compression and consequently results in…
Nonlinear Mechanics of Remodeling
Aditya Kumar, Arash Yavari
In this paper we present a large-deformation formulation of the mechanics of remodeling. Remodeling is anelasticity with an internal constraint -- material evolutions that are mass…